LXR linux/drivers/misc/genwqe/genwqe

   1#ifndef __GENWQE_DRIVER_H__
   2#define __GENWQE_DRIVER_H__
   3
   4/**
   5 * IBM Accelerator Family 'GenWQE'
   6 *
   7 * (C) Copyright IBM Corp. 2013
   8 *
   9 * Author: Frank Haverkamp <haver@linux.vnet.ibm.com>
  10 * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
  11 * Author: Michael Jung <mijung@gmx.net>
  12 * Author: Michael Ruettger <michael@ibmra.de>
  13 *
  14 * This program is free software; you can redistribute it and/or modify
  15 * it under the terms of the GNU General Public License (version 2 only)
  16 * as published by the Free Software Foundation.
  17 *
  18 * This program is distributed in the hope that it will be useful,
  19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  21 * GNU General Public License for more details.
  22 */
  23
  24#include <linux/types.h>
  25#include <linux/stddef.h>
  26#include <linux/cdev.h>
  27#include <linux/list.h>
  28#include <linux/kthread.h>
  29#include <linux/scatterlist.h>
  30#include <linux/iommu.h>
  31#include <linux/spinlock.h>
  32#include <linux/mutex.h>
  33#include <linux/platform_device.h>
  34#include <linux/printk.h>
  35
  36#include <asm/byteorder.h>
  37#include <linux/genwqe/genwqe_card.h>
  38
  39#define DRV_VERSION             "2.0.25"
  40
  41/*
  42 * Static minor number assignement, until we decide/implement
  43 * something dynamic.
  44 */
  45#define GENWQE_MAX_MINOR        128 /* up to 128 possible genwqe devices */
  46
  47/**
  48 * genwqe_requ_alloc() - Allocate a new DDCB execution request
  49 *
  50 * This data structure contains the user visiable fields of the DDCB
  51 * to be executed.
  52 *
  53 * Return: ptr to genwqe_ddcb_cmd data structure
  54 */
  55struct genwqe_ddcb_cmd *ddcb_requ_alloc(void);
  56
  57/**
  58 * ddcb_requ_free() - Free DDCB execution request.
  59 * @req:       ptr to genwqe_ddcb_cmd data structure.
  60 */
  61void ddcb_requ_free(struct genwqe_ddcb_cmd *req);
  62
  63u32  genwqe_crc32(u8 *buff, size_t len, u32 init);
  64
  65static inline void genwqe_hexdump(struct pci_dev *pci_dev,
  66                                  const void *buff, unsigned int size)
  67{
  68        char prefix[32];
  69
  70        scnprintf(prefix, sizeof(prefix), "%s %s: ",
  71                  GENWQE_DEVNAME, pci_name(pci_dev));
  72
  73        print_hex_dump_debug(prefix, DUMP_PREFIX_OFFSET, 16, 1, buff,
  74                             size, true);
  75}
  76
  77#endif  /* __GENWQE_DRIVER_H__ */
  78